Ripped out the Gemini API stub (ai/mod.rs, ai_commands.rs, GeminiPanel.vue)
and replaced it with a local PTY terminal in the sidebar panel. Users select
a shell (bash/zsh/sh on Unix, PowerShell/CMD/Git Bash on Windows), launch it,
and run claude/gemini/codex or any CLI tool directly.
Backend:
- New PtyService module using portable-pty (cross-platform PTY)
- DashMap session registry (same pattern as SshService)
- spawn_blocking output loop (portable-pty reader is synchronous)
- 5 Tauri commands: list_available_shells, spawn_local_shell, pty_write,
pty_resize, disconnect_pty
Frontend:
- Parameterized useTerminal composable: backend='ssh'|'pty'
- convertEol=false for PTY (PTY driver handles LF→CRLF)
- CopilotPanel.vue with shell selector, launch/kill, session ended prompt
- Ctrl+Shift+G toggle preserved
Tests: 87 total (5 new PTY tests), zero warnings
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
